| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * (C) 2001 Dirk Mueller (mueller@kde.org) |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved. |
| * (C) 2006 Alexey Proskuryakov (ap@nypop.com) |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "core/html/HTMLOptGroupElement.h" |
| |
| #include "core/HTMLNames.h" |
| #include "core/dom/NodeComputedStyle.h" |
| #include "core/dom/Text.h" |
| #include "core/editing/EditingUtilities.h" |
| #include "core/html/HTMLContentElement.h" |
| #include "core/html/HTMLDivElement.h" |
| #include "core/html/HTMLSelectElement.h" |
| #include "core/html/shadow/ShadowElementNames.h" |
| #include "wtf/StdLibExtras.h" |
| #include "wtf/text/CharacterNames.h" |
| |
| namespace blink { |
| |
| using namespace HTMLNames; |
| |
| inline HTMLOptGroupElement::HTMLOptGroupElement(Document& document) |
| : HTMLElement(optgroupTag, document) |
| { |
| setHasCustomStyleCallbacks(); |
| } |
| |
| HTMLOptGroupElement* HTMLOptGroupElement::create(Document& document) |
| { |
| HTMLOptGroupElement* optGroupElement = new HTMLOptGroupElement(document); |
| optGroupElement->ensureUserAgentShadowRoot(); |
| return optGroupElement; |
| } |
| |
| bool HTMLOptGroupElement::isDisabledFormControl() const |
| { |
| return fastHasAttribute(disabledAttr); |
| } |
| |
| void HTMLOptGroupElement::childrenChanged(const ChildrenChange& change) |
| { |
| recalcSelectOptions(); |
| HTMLElement::childrenChanged(change); |
| } |
| |
| void HTMLOptGroupElement::parseAttribute(const QualifiedName& name, const AtomicString& oldValue, const AtomicString& value) |
| { |
| HTMLElement::parseAttribute(name, oldValue, value); |
| recalcSelectOptions(); |
| |
| if (name == disabledAttr) { |
| pseudoStateChanged(CSSSelector::PseudoDisabled); |
| pseudoStateChanged(CSSSelector::PseudoEnabled); |
| } else if (name == labelAttr) { |
| updateGroupLabel(); |
| } |
| } |
| |
| void HTMLOptGroupElement::recalcSelectOptions() |
| { |
| // TODO(tkent): Should use ownerSelectElement(). |
| if (HTMLSelectElement* select = Traversal<HTMLSelectElement>::firstAncestor(*this)) |
| select->setRecalcListItems(); |
| } |
| |
| void HTMLOptGroupElement::attach(const AttachContext& context) |
| { |
| if (context.resolvedStyle) { |
| ASSERT(!m_style || m_style == context.resolvedStyle); |
| m_style = context.resolvedStyle; |
| } |
| HTMLElement::attach(context); |
| } |
| |
| void HTMLOptGroupElement::detach(const AttachContext& context) |
| { |
| m_style.clear(); |
| HTMLElement::detach(context); |
| } |
| |
| bool HTMLOptGroupElement::supportsFocus() const |
| { |
| HTMLSelectElement* select = ownerSelectElement(); |
| if (select && select->usesMenuList()) |
| return false; |
| return HTMLElement::supportsFocus(); |
| } |
| |
| bool HTMLOptGroupElement::matchesEnabledPseudoClass() const |
| { |
| return !isDisabledFormControl(); |
| } |
| |
| void HTMLOptGroupElement::updateNonComputedStyle() |
| { |
| m_style = originalStyleForLayoutObject(); |
| if (layoutObject()) { |
| if (HTMLSelectElement* select = ownerSelectElement()) |
| select->updateListOnLayoutObject(); |
| } |
| } |
| |
| ComputedStyle* HTMLOptGroupElement::nonLayoutObjectComputedStyle() const |
| { |
| return m_style.get(); |
| } |
| |
| PassRefPtr<ComputedStyle> HTMLOptGroupElement::customStyleForLayoutObject() |
| { |
| updateNonComputedStyle(); |
| return m_style; |
| } |
| |
| String HTMLOptGroupElement::groupLabelText() const |
| { |
| String itemText = getAttribute(labelAttr); |
| |
| // In WinIE, leading and trailing whitespace is ignored in options and optgroups. We match this behavior. |
| itemText = itemText.stripWhiteSpace(); |
| // We want to collapse our whitespace too. This will match other browsers. |
| itemText = itemText.simplifyWhiteSpace(); |
| |
| return itemText; |
| } |
| |
| HTMLSelectElement* HTMLOptGroupElement::ownerSelectElement() const |
| { |
| // TODO(tkent): We should return only the parent <select>. |
| return Traversal<HTMLSelectElement>::firstAncestor(*this); |
| } |
| |
| String HTMLOptGroupElement::defaultToolTip() const |
| { |
| if (HTMLSelectElement* select = ownerSelectElement()) |
| return select->defaultToolTip(); |
| return String(); |
| } |
| |
| void HTMLOptGroupElement::accessKeyAction(bool) |
| { |
| HTMLSelectElement* select = ownerSelectElement(); |
| // send to the parent to bring focus to the list box |
| if (select && !select->focused()) |
| select->accessKeyAction(false); |
| } |
| |
| void HTMLOptGroupElement::didAddUserAgentShadowRoot(ShadowRoot& root) |
| { |
| DEFINE_STATIC_LOCAL(AtomicString, labelPadding, ("0 2px 1px 2px")); |
| DEFINE_STATIC_LOCAL(AtomicString, labelMinHeight, ("1.2em")); |
| HTMLDivElement* label = HTMLDivElement::create(document()); |
| label->setAttribute(roleAttr, AtomicString("group")); |
| label->setAttribute(aria_labelAttr, AtomicString()); |
| label->setInlineStyleProperty(CSSPropertyPadding, labelPadding); |
| label->setInlineStyleProperty(CSSPropertyMinHeight, labelMinHeight); |
| label->setIdAttribute(ShadowElementNames::optGroupLabel()); |
| root.appendChild(label); |
| |
| HTMLContentElement* content = HTMLContentElement::create(document()); |
| content->setAttribute(selectAttr, "option,hr"); |
| root.appendChild(content); |
| } |
| |
| void HTMLOptGroupElement::updateGroupLabel() |
| { |
| const String& labelText = groupLabelText(); |
| HTMLDivElement& label = optGroupLabelElement(); |
| label.setTextContent(labelText); |
| label.setAttribute(aria_labelAttr, AtomicString(labelText)); |
| } |
| |
| HTMLDivElement& HTMLOptGroupElement::optGroupLabelElement() const |
| { |
| return *toHTMLDivElement(userAgentShadowRoot()->getElementById(ShadowElementNames::optGroupLabel())); |
| } |
| |
| } // namespace blink |